השוואת שיטות

	Collective Action Tendency Measurement (SIMCA)	Group Identity Measurement
תחום	פסיכולוגיה פוליטית	פסיכולוגיה פוליטית
משפחה	Process / pipeline	Process / pipeline
שנת המקור	2008	2008
הוגה השיטה	Martijn van Zomeren, Tom Postmes & Russell Spears	Colin Wayne Leach et al.
סוג	Self-report multi-construct measure	Self-report identity scale
מקור מכונן	van Zomeren, M., Postmes, T., & Spears, R. (2008). Toward an integrative social identity model of collective action: A quantitative research synthesis of three socio-psychological perspectives. Psychological Bulletin, 134(4), 504-535.	Leach, C. W., van Zomeren, M., Zebel, S., Vliek, M. L. W., Pennekamp, S. F., Doosje, B., Ouwerkerk, J. W., & Spears, R. (2008). Group-level self-definition and self-investment: A hierarchical (multicomponent) model of in-group identification. Journal of Personality and Social Psychology, 95(1), 144-165.
כינויים	SIMCA, Collective Action Scale, Protest Intention Measure	Group Identification Scale, Ingroup Identification Measure, Identity Centrality Scale
קשורות	4	4
תקציר	Collective action tendency measurement, organized by the Social Identity Model of Collective Action (SIMCA; van Zomeren, Postmes and Spears, 2008), assesses the psychological predictors of willingness to engage in protest and group-based political action: perceived injustice (especially group-based anger), group efficacy, and politicized social identity. SIMCA integrates these three traditions into a structural model in which identity drives action both directly and through injustice and efficacy.	Group identity measurement assesses the strength and structure of a person's psychological identification with a social group, such as a party, nation, ethnic group, or movement. The Leach et al. (2008) hierarchical multicomponent model is a leading approach, decomposing in-group identification into self-definition (individual self-stereotyping, in-group homogeneity) and self-investment (solidarity, satisfaction, centrality), measured by a validated 14-item scale.